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<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>rest参数-对象展开-ES9</title>
</head>

<body>
  <!-- 
    Rest 参数与 spread 扩展运算符在 ES6 中已经引入，不过 ES6 中只针对于数组，
    在 ES9 中为对象提供了像数组一样的 rest 参数和扩展运算符
  -->
  <script>
    /* function connect({host, port, username, password}) {
      console.log(host);
      console.log(port);
      console.log(username);
      console.log(password);
    } */

    /* function connect({host, port, ...user}) {
      console.log(host);
      console.log(port);
      console.log(user);
    }

    connect({
      host: '127.0.0.1',
      port: 3306,
      username: 'root',
      password: 'root'
    }) */

    const skillOne = {
      q: '天音波'
    }

    const skillTwo = {
      w: '金钟罩'
    }

    const skillThree = {
      e: '天雷破'
    }

    const skillFour = {
      r: '猛龙摆尾'
    }

    const mangshen = {...skillOne, ...skillTwo, ...skillThree, ...skillFour}
    console.log(mangshen);
  </script>
</body>

</html>